Gallbladder disease refers to a range of conditions affecting the gallbladder, a small organ located beneath the liver that stores bile. Common issues include gallstones, which are hardened deposits that can block bile flow, leading to pain and digestive problems. Other conditions may involve inflammation, known as cholecystitis, or dysfunction of the gallbladder's ability to release bile. Symptoms of gallbladder disease often include abdominal pain, especially in the upper right quadrant, nausea, and bloating. Diagnosis typically involves imaging tests like ultrasound or CT scans. Treatment options may range from dietary changes to surgical removal of the gallbladder, known as cholecystectomy.